"It's clear to me that Chang and Janus want to find a cure. That rules them out for me. We know preventing a cure is priority number one for the Immari. There's only one person on this boat who was a loyal Immari soldier when this all began. Kamau."

"Maybe not while he was alive, but what... what if Chang had already killed Martin? You said he gave him a therapy on the plague barge. What if that therapy killed him, and Chang broke his neck after the fact to hide it?"

Chang yelled out, a split second before Shaw drew the knife from his belt and slashed quickly across Chang's throat and windpipe, spraying blood on the stone wall and sending Chang to the ground, gurgling, clasping his opened throat, fighting for a breath that wouldn't come.

"I knew if he came to, he would recognize me, expose me. I'd assumed he would die without my help, but Chang's therapy, it made him better. When you left to... join David, it was the first chance I had. I did what I had to-to complete my mission. Nothing personal."